#include <stdio.h>
#include <stdlib.h>
#include "main.h"

//read a world file

int readFile(FILE *file){

    int a;
    if((a = getc(file)) == EOF){
        return 0;
    }

    //convert ASCII codes

    switch(a){
    case 48:
        return 0;
    case 49:
        return 1;
    case 50:
        return 2;
    case 51:
        return 3;
    case 52:
        return 4;
    case 53:
        return 5;
    case 54:
        return 6;
    case 55:
        return 7;
    case 56:
        return 8;
    case 57:
        return 9;
    }
    return 0;
}

//initialize a world structure

struct world readWorld(char *filename){

    struct world w;
    FILE *file;
    int a,b;

    file = fopen(filename, "r");

    w.rows = readFile(file);
    w.cols = readFile(file);

    printf("%d",w.rows);

    w.tile = malloc(w.rows*sizeof(int*));
    for(a=0;a<w.rows;a++)
        w.tile[a] = malloc(w.cols*sizeof(int*));

    for(a=0;a<w.rows;a++)
        for(b=0;b<w.cols;b++){
            w.tile[a][b] = readFile(file);
        }

    fclose(file);

    for(a=0;a<w.rows;a++)
        for(b=0;b<w.cols;b++)
            printf("%d",w.tile[a][b]);
    return w;
}

//free allocated world memory

void freeWorld(struct world w){
    int a;
    for(a=0;a<w.rows;a++)
        free(w.tile[a]);
    free(w.tile);
}